Electric lighting.



No. 873,894. PATENTED DEC. 17; 190?.

E. A. SPERRY." ELECTRIC LIGHTING. A PPLIOAT ION IILEfi D110. 31, 19 06.

INVENTOR Al/omcys UNITED STATES PATENT OFFICE.

ELMER A. SPERRY, oF BROOKLYN, NEW YORK.

ELECTRIC LIGHTING.

To whom it may concern:

Be it known that I, ELMER A. SPERRY, a citizenof the United States, and a resident of Brooklyn, county of Kings, State .of New York, have invented a certain new and useful Improvement in Electric Lighting, of

which the following is a specification.

My'invention relates to a system of electric lighting and it consists in an adaptation of means whereby the useful life of the incandescent lamp' provided with a weldable filament can be increased, and also means cially for temporary uses andat points not reached by systems of electrical distribution.

- Its application may be extended, but in this field the obtaining ofextended life and long duty of either or both the lamps and battery play an im ortant part and operate to render such distri ution system successful.

It has been found that metal or metallized filament incandescent lamps especially those of low candle ower are more ractical with low volta es t an with high vo tagesand the wire or fi ament between supports may be made shorter or the lamps may have so few sup orts that the filament itself may be sm ler than with the higher voltage lamps,

and, therefore, more efficient than the lll h voltage lamps. The finer filament is of t e greatest durability forlamps of moderate candle power, and has special value in connection with the present-improvements.

It is a fact that filaments of metal or metallized filaments of electric lamps, unlike those of carbon, are self-welding, that is the broken and apparently useless filament of such ,a lamp, when its ends are brought" together or in contact with other parts, will become united or welded and the lamp will again'become useful and ,so continue for a considerable additional period of time. I have found Specification of Letters I Patent.

Application filed December 31. 1906. Serial No. 350.154:-

-is best adapted'for this purpose.-

cent.

Patented 1369.17, 1907.

tation, and especially a motion in a lurality of planes, or so to speak, a universe motion I have moreover found that the best results in this line are obtained when practically no time is lost between the instant of rupture and the efiective operation of the-vibration, so;

that the dismembered parts of the filament may be brought into contact and the weld that a continuous motion of vibration or agimay take place while the filament is still at v or near'lts-full temperature, which is known to be ve high. This time interyal is of appreclab e duration as convection, 'the most potent factor 1n cooling, in an exhausted electric lamp of-this class, is entirely ab sent, and therefore a period 'of time exists which I have found tobe mostfavorable for the re-uniting of the filaments or parts thereof. Thus it will be seen to be desirable that no time shall be lost, and since in the present invention the operationof the lamp is under conditions of suitably intermittent or prac. tically continuous motion orvibration, dur: ing its operation the lamp while being apparently uninterrupted may have actually failed, thefilament parted and then welded a ain before the'radiation had had time to dle down or the lam become dimmed.

I further'provide t at the battery shall be affected by motion'or vibration. Motion and agitation generally are beneficial to chemical actions and re-actions. By. a'itation the tendency to impoverishment o the active material, -or the active radical or element, may be almost entirely corrected and the activities made more effective, materials acted upon more deeply than where uies- Again insulating cases or bubb es of such gases occluded or developed at the active surfaces are dislodged and not allowed to collect. When they do so collect they cut down both the voltage and output of batteries, either flmary'or stora e batteries, as

is :well known. Of comsewio ent shocks are detrimental to batteries and-lamps as well but these are not included in the motion specified and set forth in connection with thismven tion.

7 One method of carrying out my invention is shown in the accompany in drawings which serve to illustrate one 'o v the many form of the vibrator.

forms in which it may be embodied; these drawmgs represent an electric lighting unit under this invention. a

{; Figure 1 is an elevation of a complete unitembodying myinvention. Fig. 2 is'a vertical section of'thesame, Fig. 3 is an alternate Fig. 4 is a. diagrammatic view showing the way in which the circuits are connected.

In a container 10 which may be suitably ornamented is a support 11 herein shown as instance upon the platform or support 11 is This power may be furnishe mounted the battery 16 or a number'of cells of battery (any chemical generator of electrical energy) but preferably storage batteries are shown as being used in the present instance; the arrangement being such that a .common vibrator as 17 will serve to com .municate motion to the lamp -or lamps and also to the batteries. This means of moving the parts shown at 17 performs its work withv but very little effort or expenditure of power as only a few watts of energy are required.

from any suitable source of supply, either mechanical or electrical, but the arrangement shown in Fig. 2 involves the use of an electric motor connected with the support '11. 'The power from this motor may be used or utilized in any manner to move or cause motion, preferab y contmuous motlon or vibration, of the parts, for instance the operation of the cam 19, see Fig. 3, or the motor may be connected to the platform as shown in Fig. 2 and upon its shaft 18 two fly-wheels areused, one back of the other, which are preferably out of balance as by the drill hole 21 in the disk of the wheel, the other wheel bein 'out of balance by the hole 22, shown in ottcd lines. It

- will be noticed that the relationof the holes 21 and 22 are on the quarter or 90 from each I other. Such an arrangement causes a peculiar movement of the parts as will readil be understood. This movement involves vibra tion in a number of different planes and is important to the present invention as it increased the liability of the filament-portions bein brought intocontact which under the con tions of full impressed electro-motive .to carry together the ends from the same source.

understood that suitable switches are to be force from the source of electric supply or potential causes their instant welding and the reunited filament to again glow, giving light as before. This electrical energy may be from any suitable source as well as that whichsupplies the motor, or they may draw their energy from the same source of supply.

It will be understood that by incandescent lamp and incandescent filament I refer to an electric lamp in which the continuous incan descence of the filament is depended upon as the source of light, and that where I refer to the motion or agitation of the filament or lamp 1 mean such an agitation as will tend of a broken filament. p

In Fig. 4 I have shown diagrammatically a battery 23 having circuit connection with the motor 24 and the lamp 25 and as clearly shown here the lamp and motor are supplied It is of course to he placed in the circuit.

It will be readily understood that the agitation herein referred to may be from any suitable source and the system as a whole may be in any form and differ widely as to size and extent, the invention having a wide range of usefulness in the art to which it relates.

Without limiting shown in the drawing, 1 claim as my invention:

1. An. electric lamp having a continuous weldable incandescent lilanwnt. a support for such lam a source of electrical supply, and means or agitating the support and lnyself to the precise construction and arrangement of parts imparting sucha movement to the filament as will brin broken parts thereof together while the filament is connected with such source.- 2. An electric lamp having a continuous weldable incandescent filament, a support for such lamp, a source of electrical supply, and means for imparting practically contmuous motionto the support such as will bring broken parts of the fi ament together wh1le the filament is connected with the said source.

3. An electric lamp having a continuous weldable incandescentfilament, a support for such lamfp, a source of electrical supply,

and means. r imparting'motion in a plurality ofplanes to the sup ort such as will bring bro en parts of the while the filament is connected with such source.

4. An electric lamp having a continuous weldable incandescent filament, a support for such lamp mounted in e uilibrium upon resilient members, a source 0 electrical supply for i such lamp, and means for imparting ament together motion to the support mounted as described while the filament is in connection with the said source.

5. An electric lamp having a continuous weldable incandescent filament, a support for such lamp mounted in equilibrium upon resilient members, a source of electrical supply for such lamp, and means for imparting vibration in a plurality of planes to the support. while the filament is connected with such source.

6. In a weldable filament incandescent electric lamp having a continuous incandescent filament, a source of electrical supply consisting of a battery, a support common to the battery and the lamp, and means for imparting motion to the su port while the filament is connected with t e source.

7. In a weldable filament incandescent electric lamp, a source of electrical supply consisting oi a battery, 2." support'common to the battery andthe lam and means for imparting Vibration in a p urality of planes to the support while the filament is connected with the source.

8. In a weldable filament incandescent electric lam a source of electrical supply consisting 0 a battery, a support common to the battery and lamp, means for mounting such support in equilibrium on resilient members, and means for imparting motion to the support somounted while the filament is connected with the source.

9. In a weldable filament incandescent electric lam a source of electrical supply conslstmg 'o a battery, a support common tothe battery and lamp, means for mounting such support in equilibrium on resilient members, and means for imparting motion I in a plurality of planes to the support so mounted while the filament is connected with the source.

10. A weldable filament incandescent electric lamp, a support for such lamp, a source of electrical supply, and means for imparting motion to the support such as will bring broken parts of thefilament together,

the lamp and means deriving energy from the.

same source.

11. A weldable filament incandescent lam a support for such lamp resting upon res' ient members, a sub-base for receiving such members, resilient supports for such sub-base, and means for imparting vibration I to the said lamp such as will bring broken parts of the filament together.

12. A weldable. filament incandescent I electric lamp, combined with means for agitating the lam and imparting such a movement to the lament as will bring broken parts thereof together while the filament is in connection with a source, of electrical potential.

13. The combination of a weldable filament incandescent electric lamp, a support therefor, and means for agitating the support withthe lamp and imparting s11 h"a move ment tothe filament as Wlll brlng broken parts thereof together while the latter is in connectionwith .a source ofelectrical supply.

In testimony whereof I aflix my signature Witnesses. ELMER A. SPERRY.

Witnesses:

EMIL J. VILLANYI,

JOHN MALoNEs.

in presence of two 

